Question

Rahul puts a few drops of alcohol on the back of his hand , the alcohol dissapears and his hand feels cool. Why does this happen?​

Answer 1

Answer:

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Explanation:

Alcohols have a tendency to evaporate rapidly or we can say that alcohols are volatile in nature. Hence, when back of your hand is moistened with alcohol then it actually absorbs heat from your hand, that is, endothermic reaction takes place and our hand feels cool.

Answer 2

Answer:

his is because reacts to heat very rapidly , alcohol evaporates or reacts to even the slightest change . this is why coloured alcohol and mercury is used in thermometers

Explanation:

Alcohol evaporates much faster than water due to its lower boiling temperature. This allows more heat to be transferred faster, which makes it feel colder to the touch

i hope this is helpful